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is_bool

(PHP 4, PHP 5)

is_bool — Finds out whether a variable is a boolean

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is_bool

(PHP 4, PHP 5)

is_bool — Finds out whether a variable is a boolean

bool is_bool(mixed $var)

$var:

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${{ variable.param.name }} = {{ variable.param|getValue:variable.form:true }};
{{ call.result}} = ;

Description #

bool is_bool ( mixed $var )

Finds whether the given variable is a boolean.

Parameters #

var: The variable being evaluated.

Return Values #

Returns TRUE if var is a boolean, FALSE otherwise.

Examples #

Example #1 is_bool() examples


<?php
$a = false;
$b = 0;

// Since $a is a boolean, it will return true
if (is_bool($a) === true) {
    echo "Yes, this is a boolean";
}

// Since $b is not a boolean, it will return false
if (is_bool($b) === false) {
    echo "No, this is not a boolean";
}
?>

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is_bool

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